flameless powder

例句：

1. 1. The engineer used a flameless powderto create the illusion of fire.
   工程师使用无焰粉创造了火的错觉。
2. 2. Thescientist conducted experiments with incandescentpowder to study the properties of heat.
   科学家用炽热粉末进行实验，研究热的性质。
3. 3. The chef used non-combustible powder to make the cakelook more appealing.
   厨师用无焰粉使蛋糕看起来更吸引人。